Re: GregorianCalendar fixes

Hi,
Since I am not a GregorianCalendar expert I was hoping that someone
could review the following patch which I have in my tree from Ito
Kazumitsu. He and I wrote a couple of mauve test cases which are fixed
by this and I see no new failures. But people didn't seem to be
completely comfortable with it back in Augustus/September. It would be
nice if we could create even more test cases to make sure that nothing
else breaks and to have a ChangeLog entry for this patch (Ito?). Don't
really have have time to learn about Calendars so I am just re-posting
this patch in the hope that someone can review it.